CN109701391B - Combined low-pressure membrane shell - Google Patents
Combined low-pressure membrane shell Download PDFInfo
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- CN109701391B CN109701391B CN201910155709.1A CN201910155709A CN109701391B CN 109701391 B CN109701391 B CN 109701391B CN 201910155709 A CN201910155709 A CN 201910155709A CN 109701391 B CN109701391 B CN 109701391B
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- sleeve
- water
- membrane
- water purifying
- shell
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- 239000012528 membrane Substances 0.000 title claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 238000007789 sealing Methods 0.000 claims description 19
- 239000008213 purified water Substances 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000011257 shell material Substances 0.000 description 44
- 238000001223 reverse osmosis Methods 0.000 description 9
- 238000000108 ultra-filtration Methods 0.000 description 7
- 238000001728 nano-filtration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a combined low-pressure membrane shell, which relates to the technical field of water treatment and comprises the following components: the device comprises a membrane shell, a low-pressure membrane element arranged in the membrane shell, two water inlet and outlet membrane heads respectively arranged at two ends of the membrane shell, and a center rod, wherein the center rod passes through the center of the low-pressure membrane element, and two ends of the center rod are respectively fixedly connected with the two water inlet and outlet membrane heads; each water inlet and outlet film head comprises a film head sleeve, a raw water sleeve and a water purifying sleeve, wherein the film head sleeve is provided with a raw water port and a water purifying port, the water purifying port is arranged at the center of the film head sleeve, the raw water port is arranged at the position deviating from the center of the film head sleeve, the raw water sleeve is sleeved on the raw water port, the water purifying sleeve is sleeved on the water purifying port, and the water purifying sleeve is also used for fixing a center rod.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a combined low-pressure membrane shell.
Background
At present, the membrane separation technology has been widely applied to the field of water treatment, and known membrane elements are generally classified into reverse osmosis membranes (RO membranes), nanofiltration membranes (NF membranes) and ultrafiltration membranes (UF membranes). Because the common ultrafiltration membrane does not need a matched membrane shell, most ultrafiltration membranes are made into a curtain type, and the tubular ultrafiltration membrane is made into a whole by membrane wires and tubes, and the current membrane shell is mainly used for a coiled reverse osmosis membrane and a nanofiltration membrane. The membrane shell is typically subjected to an operating pressure in the range of 16 to 100bar and is typically in the range of 1 to 7 meters in length, and can accommodate 1 to 7 membrane elements having diameters of 2.5, 4, 8, 16 inches. The pressure load is different and the requirements for the membrane shell are also different. As mentioned above, the currently known membrane shells have a pressure resistance in the range of 16 to 100bar and lack a membrane shell having a pressure resistance in the range of 1 to 10bar, in particular roll-type ultrafiltration membrane elements which have been developed by the applicant and which use a pressure of only 2-3 bar.
An integrated reverse osmosis membrane as disclosed in chinese patent No. CN101987282a, which is subjected to water pressure during reverse osmosis by using a membrane end cap of a closed structure, a method for use in water treatment, and a water treatment apparatus; and connecting the membrane element with the membrane end cover by adopting a membrane element which is formed by winding glass fibers in a crossing way, and curing the membrane element and the membrane end cover after connecting the membrane element and the membrane end cover, wherein no gap exists between the membrane element and the membrane end cover, so that the membrane end cover and the membrane end cover form an integration. The method comprises the steps of firstly filtering raw water through quartz sand to remove suspended matters and large-particle impurities in the raw water, then adsorbing heavy metals and bacteria in a water body through activated carbon to obtain clarified water, then removing small-particle impurities in the water through a security filter, and then inputting the clarified water into an integrated reverse osmosis membrane, wherein the filtered produced water meets the final use requirement; the membrane shell of the integrated reverse osmosis membrane disclosed by the invention has the problems of inconvenient replacement and high cost.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a combined low-pressure membrane shell, solves the problem that the existing membrane shell for a coiled reverse osmosis membrane and a nanofiltration membrane usually bears working pressure in the range of 16-100 bar and lacks a membrane shell with pressure resistance in the range of 1-10 bar, and simultaneously solves the problem that the existing membrane shell needs to be replaced integrally when a single component is damaged due to an integrated structure.
In order to solve the above technical problems, the present invention provides a combined low pressure membrane shell, comprising: the device comprises a membrane shell, a low-pressure membrane element arranged in the membrane shell, two water inlet and outlet membrane heads respectively arranged at two ends of the membrane shell, and a center rod, wherein the center rod passes through the center of the low-pressure membrane element, and two ends of the center rod are respectively fixedly connected with the two water inlet and outlet membrane heads; each water inlet and outlet film head comprises a film head sleeve, a raw water sleeve and a water purifying sleeve, wherein the film head sleeve is provided with a raw water port and a water purifying port, the water purifying port is arranged at the center of the film head sleeve, the raw water port is arranged at the position deviating from the center of the film head sleeve, the raw water sleeve is sleeved on the raw water port, the water purifying sleeve is sleeved on the water purifying port, the water purifying sleeve is also used for fixing a center rod, the raw water sleeve on one end of the film shell, which is used for flowing in water to be treated, is used for flowing out of treated wastewater, and the raw water sleeve on the other end of the film shell, which is used for flowing out of the purified water treated by the low-pressure film element; by adopting the technical scheme, the combined low-pressure membrane shell is well realized, the assembly structure is simple and convenient, the combined low-pressure membrane shell is well suitable for a coiled ultrafiltration membrane element, and is also suitable for a nanofiltration membrane or a reverse osmosis membrane element with the operating pressure lower than 10bar, and the combined low-pressure membrane shell has lower pressure strength requirements than the current general membrane shell because the combined low-pressure membrane shell is used for an environment with the operating pressure lower than 10bar, so that the cost can be well saved, and the membrane shell can be economically prepared.
The two ends of the raw water sleeve are also provided with locking nuts, the locking nuts are used for locking and fixing the central rod and the raw water sleeve, and the fixing operation is simple and convenient.
Wherein, a first sealing ring is arranged between the membrane shell and the water inlet and outlet membrane head; a second sealing ring is arranged between the water purifying sleeve and the water purifying port; a third sealing ring is arranged between the central rod and the water purifying sleeve, and tightness among the water inlet and outlet membrane head, the membrane shell and the central rod can be well guaranteed through the first sealing ring, the second sealing ring and the third sealing ring.
Wherein, the shell material of the membrane shell is glass fiber reinforced plastic, and has the characteristics of light weight and high strength.
Wherein, be equipped with detachable interface pipe on the water purification sleeve pipe.
Drawings
FIG. 1 is an exploded view of a modular low pressure membrane shell of the present invention;
FIG. 2 is a schematic view of a modular low pressure membrane shell according to the present invention;
FIG. 3 is a cross-sectional view of a modular low pressure membrane shell of the present invention;
FIG. 4 is an exploded view of the water inlet and outlet membrane head of the present invention;
FIG. 5 is a perspective view of a low pressure membrane element of the present invention;
FIG. 6 is a cross-sectional view of the mounting structure at the water inlet and outlet membrane head of the present invention;
in the figure: 1 is a low pressure membrane element; 2 is a water inlet and outlet film head; 3 is a membrane shell; 4 is a central rod; 5 is a first sealing ring; 6 is a second sealing ring; 7 is a third sealing ring; 8 is a fourth sealing ring; 11 is a membrane headgear barrel; 12 is a raw water sleeve; 13 is a water purifying sleeve; 14 is a raw water gap; 15 is a clean water gap; 16 is a lock nut; and 17 is an interface tube.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Example 1:
the embodiment of the invention provides a combined low-pressure membrane shell, as shown in fig. 1, 2, 3, 4, 5 and 6, comprising: the membrane shell comprises a membrane shell 3, a low-pressure membrane element 1 arranged in the membrane shell 3, two water inlet and outlet membrane heads 2 respectively arranged at two ends of the membrane shell 3, and a central rod 4, wherein the central rod 4 passes through the center of the low-pressure membrane element 1, two ends of the central rod 4 are respectively fixedly connected with the two water inlet and outlet membrane heads 2, and the specific membrane shell 3 is made of glass fiber reinforced plastic and has the characteristics of light weight and high strength;
each water inlet and outlet membrane head 2 comprises a membrane head sleeve 11, a raw water sleeve 12 and a water purifying sleeve 13, wherein the membrane head sleeve 11 is provided with a raw water port 14 and a water purifying port 15, the water purifying port 15 is arranged at the center of the membrane head sleeve 11, the raw water port 14 is arranged at the position deviating from the center of the membrane head sleeve 11, the raw water sleeve 12 is sleeved on the raw water port 14, the water purifying sleeve 13 is sleeved on the water purifying port 15, the water purifying sleeve 13 is also used for fixing a center rod 4, and in the embodiment, as shown in fig. 1, two ends of the raw water sleeve 12 are also provided with locking nuts 16, two ends of the center rod 4 are provided with threads, and the locking nuts 16 are used for locking and fixing the center rod 4 and the raw water sleeve 12;
the raw water sleeve 12 on the water inlet and outlet film head 2 at one end of the film shell 3 is used for flowing in water to be treated, the raw water sleeve 12 on the water inlet and outlet film head 2 at the other end of the film shell 3 is used for flowing out treated wastewater, namely, the water to be treated enters the low-pressure film element 1 through the raw water sleeve 12 on the water inlet and outlet film head 2 at one end, in the water treatment process, the treated wastewater flows out through the raw water sleeve 12 on the water inlet and outlet film head 2 at the other end, the water purifying sleeve 13 is used for flowing out purified water treated by the low-pressure film element 1, namely, the purified water treated by the low-pressure film element 1 flows into a channel where the central rod 4 is located, flows along the central rod 4 and flows into the water purifying sleeves 13 at two ends of the central rod 4, and finally flows out through the water purifying sleeves 13.
The embodiment adopts the technical scheme, the combined low-pressure membrane shell is well realized, the assembly structure is simple and convenient, the device is well suitable for a coiled ultrafiltration membrane element, and is also suitable for a nanofiltration membrane or a reverse osmosis membrane element with the operating pressure lower than 10bar, and the device is used in an environment with the operating pressure lower than 10bar, so that the device has lower pressure-resistant strength requirement than the current general membrane shell, the cost can be well saved, and the membrane shell can be economically prepared.
As shown in fig. 6, a first sealing ring 5 is further arranged between the membrane shell housing 3 and the water inlet and outlet membrane head 2; a second sealing ring 6 is arranged between the water purifying sleeve 13 and the water purifying port 15; a third sealing ring 7 is arranged between the central rod 4 and the water purifying sleeve 13, and a fourth sealing ring 8 is arranged between the low-pressure membrane element 1 and the water inlet and outlet membrane head 2.
As shown in fig. 1, the water purifying sleeve 13 is provided with a detachable interface tube 17, so that the water purifying sleeve is more convenient to install and replace.
Example 2:
compared with the embodiment 1, in the embodiment 2, the water purifying port 15 on one water inlet and outlet film head 2 is set to be in a closed state, namely in the embodiment 2, the purified water treated by the low-pressure film element 1 flows into the channel where the central rod 4 is located, flows out from the water purifying port 15 on the other water inlet and outlet film head 2, and faces the requirements of different customers, thereby realizing the effect of concentrated water outlet, being simpler to install and further reducing the production cost.
Example 3:
compared with embodiment 1, in embodiment 3, the lock nut 16 is fixed on the top of the water purifying sleeve 13, that is, the center rod 4 cannot completely pass through the water purifying sleeve 13 in the installation process, so that the overall sealing effect is further improved, and meanwhile, the visual effect of the appearance of the product is better.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (1)
1. A modular low pressure membrane shell, wherein the modular low pressure membrane shell comprises: the device comprises a membrane shell housing (3), a low-pressure membrane element (1) arranged in the membrane shell housing (3), two water inlet and outlet membrane heads (2) respectively arranged at two ends of the membrane shell housing (3), and a center rod (4), wherein the center rod (4) penetrates through the center of the low-pressure membrane element (1), and two ends of the center rod (4) are fixedly connected with the two water inlet and outlet membrane heads (2) respectively;
each water inlet and outlet film head (2) comprises a film head sleeve (11), a raw water sleeve (12) and a water purifying sleeve (13), wherein a raw water inlet (14) and a water purifying opening (15) are formed in the film head sleeve (11), the water purifying opening (15) is formed in the center of the film head sleeve (11), the raw water inlet (14) is formed in the position, deviating from the center, of the film head sleeve (11), the raw water sleeve (12) is sleeved on the raw water inlet (14), the water purifying sleeve (13) is sleeved on the water purifying opening (15), the water purifying sleeve (13) is further used for fixing the central rod (4), the raw water sleeve (12) on one end of the film shell (3) is used for flowing in water to be treated, the sleeve (12) on the other end of the film shell (3) is used for flowing out of treated waste water, and the water purifying sleeve (13) is used for flowing out of the purified water treated by the low-pressure film element (1);
lock nuts (16) are further arranged at two ends of the raw water sleeve (12), and the lock nuts (16) are used for locking and fixing the center rod (4) and the raw water sleeve (12);
a first sealing ring (5) is arranged between the membrane shell (3) and the water inlet and outlet membrane head (2);
a second sealing ring (6) is arranged between the water purifying sleeve (13) and the water purifying opening (15);
a third sealing ring (7) is arranged between the central rod (4) and the water purifying sleeve (13);
a fourth sealing ring (8) is arranged between the low-pressure membrane element (1) and the water inlet and outlet membrane head (2);
the membrane shell (3) is made of glass fiber reinforced plastic;
the water purifying sleeve (13) is provided with a detachable interface tube (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155709.1A CN109701391B (en) | 2019-03-01 | 2019-03-01 | Combined low-pressure membrane shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155709.1A CN109701391B (en) | 2019-03-01 | 2019-03-01 | Combined low-pressure membrane shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109701391A CN109701391A (en) | 2019-05-03 |
| CN109701391B true CN109701391B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910155709.1A Active CN109701391B (en) | 2019-03-01 | 2019-03-01 | Combined low-pressure membrane shell |
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| Country | Link |
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| CN (1) | CN109701391B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115754193B (en) * | 2022-11-04 | 2023-07-11 | 哈尔滨乐普实业有限公司 | Digital membrane assembly and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000055178A (en) * | 1999-02-04 | 2000-09-05 | 정휘동 | Pressure boosting pump for water purifier |
| JP2004050081A (en) * | 2002-07-22 | 2004-02-19 | Japan Organo Co Ltd | Spiral membrane element, reverse osmosis membrane module, and reverse osmosis membrane apparatus |
| CN104548939A (en) * | 2014-12-26 | 2015-04-29 | 上海璞玉环保科技有限公司 | Clamping-type reverse osmosis membrane housing |
| WO2015173981A1 (en) * | 2014-05-10 | 2015-11-19 | アドヴァンス株式会社 | Direct reverse osmosis membrane water purification apparatus with regenerable reverse osmosis membrane |
| CN106390750A (en) * | 2016-11-15 | 2017-02-15 | 上海浩泽净水科技发展有限公司 | Reverse osmosis membrane filter |
| CN206843254U (en) * | 2017-04-27 | 2018-01-05 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN207822810U (en) * | 2017-12-27 | 2018-09-07 | 贵阳时代沃顿科技有限公司 | A kind of multifunctional combination wound membrane element filter core |
| CN208340505U (en) * | 2018-03-28 | 2019-01-08 | 安徽智泓净化科技股份有限公司 | A kind of novel combination type RO reverse osmosis membrane assembly |
| CN209771841U (en) * | 2019-03-01 | 2019-12-13 | 宁波斯蒂罗科技有限公司 | Combined low-pressure membrane shell |
-
2019
- 2019-03-01 CN CN201910155709.1A patent/CN109701391B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000055178A (en) * | 1999-02-04 | 2000-09-05 | 정휘동 | Pressure boosting pump for water purifier |
| JP2004050081A (en) * | 2002-07-22 | 2004-02-19 | Japan Organo Co Ltd | Spiral membrane element, reverse osmosis membrane module, and reverse osmosis membrane apparatus |
| WO2015173981A1 (en) * | 2014-05-10 | 2015-11-19 | アドヴァンス株式会社 | Direct reverse osmosis membrane water purification apparatus with regenerable reverse osmosis membrane |
| CN104548939A (en) * | 2014-12-26 | 2015-04-29 | 上海璞玉环保科技有限公司 | Clamping-type reverse osmosis membrane housing |
| CN106390750A (en) * | 2016-11-15 | 2017-02-15 | 上海浩泽净水科技发展有限公司 | Reverse osmosis membrane filter |
| CN206843254U (en) * | 2017-04-27 | 2018-01-05 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN207822810U (en) * | 2017-12-27 | 2018-09-07 | 贵阳时代沃顿科技有限公司 | A kind of multifunctional combination wound membrane element filter core |
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| CN209771841U (en) * | 2019-03-01 | 2019-12-13 | 宁波斯蒂罗科技有限公司 | Combined low-pressure membrane shell |
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| CN109701391A (en) | 2019-05-03 |
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